Forecast Details for San Diego, CA

Your Recent Locations:  San Diego, CA  
Current Alerts for San Diego, CA: Wind Advisory
Tonight: Partly cloudy, with a low around 50. West wind 5 to 10 mph becoming light and variable.
Tuesday: Sunny, with a high near 68. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night: Mostly clear, with a low around 51. Northwest wind 5 to 10 mph becoming east after midnight. Winds could gust as high as 20 mph.
Wednesday: Sunny, with a high near 70. East wind 5 to 10 mph becoming west in the morning.
Wednesday Night: Mostly clear, with a low around 54. Northwest wind around 5 mph becoming southeast in the evening.
Thursday: Sunny, with a high near 68.
Thursday Night: Partly cloudy, with a low around 53.
Friday: Mostly sunny, with a high near 66.
Friday Night: Mostly clear, with a low around 51.
Saturday: Sunny, with a high near 68.
Saturday Night: Mostly clear, with a low around 53.
Sunday: Sunny, with a high near 69.
Sunday Night: Mostly clear, with a low around 53.
Monday: Sunny, with a high near 66.

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

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Todays National Weather Map

National Weather Forecast for Tomorrow

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Tomorrows National Weather Map

North America Water Vapor (Moisture)

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North American Water Vapor Map

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Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

rain Next Topic: Sleet

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Sleet

Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

snow Next Topic: Cirrus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Cirrus Clouds